Furnace chamber heat preservation and insulation structure of single-station molding press

Abstract

The utility model relates to the technical field of molding presses, in particular to a furnace chamber heat preservation and insulation structure of a single-station molding press. The other end of the lifting assembly is fixed to the upper die assembly. The furnace chamber body is composed of an upper fixing plate, a lower fixing plate and four side wall bodies fixed between the upper fixing plate and the lower fixing plate. Water paths are arranged in the four side wall bodies between the upper fixing plate and the lower fixing plate; supporting cushion blocks made of heat insulation materials are fixed between the lifting assembly and the upper die assembly and between the lower fixing plate and the lower die assembly. A side protection plate is fixed on the inner side wall of the side wall body; and a plurality of cushion blocks are uniformly distributed between the side protection plate and the inner side wall of the side wall body. When the mold is used, the transfer of heat of the mold to each side wall body is reduced, so that the temperature rise speed of the mold is guaranteed, the compression molding efficiency is improved, the heat loss of the mold is reduced, and the loss of a molding press is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molding machines, in particular to a furnace cavity heat preservation and insulation structure of a single-station molding machine. Background Art

[0002] The compression molding equipment is a mechanism that first puts some pellets into the mold cavity at the molding temperature, and then closes the mold and pressurizes it to form and solidify it. During compression molding, both the upper mold and the lower mold need to be pressurized to the set temperature before closing the mold. Due to the high temperature of the mold, in order to prevent burns caused by high temperature and damage to the surrounding parts, a cooling water channel needs to be set on the wall of the furnace cavity.

[0003] However, in the existing furnace cavity structure, there is no insulation structure between the furnace cavity wall (cooling water channel) and the mold; during the heating process of the mold, more heat is absorbed by the cooling water channel, which will cause the temperature in the cavity to fail to rise quickly, thereby reducing the molding efficiency of the molding machine. Moreover, this heat loss increases the load on the heating device and cooling water channel of the molding machine, and the energy consumption of the molding machine is further increased. Utility Model Content

[0004] The utility model aims to provide a furnace cavity heat insulation structure of a single-station molding machine in view of the defects and shortcomings of the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model discloses a furnace cavity heat insulation structure of a single-station molding machine, which comprises a furnace cavity body, a lower mold assembly fixed to the bottom wall of the furnace cavity body, and a lifting assembly fixed at one end to the top of the furnace cavity body; an upper mold assembly is arranged inside the furnace cavity body; the other end of the lifting assembly is fixed to the upper mold assembly;

[0007] The furnace cavity body is composed of an upper fixing plate, a lower fixing plate and four side walls fixed between the upper fixing plate and the lower fixing plate; the four side walls between the upper fixing plate and the lower fixing plate are provided with water channels inside; support pads made of heat insulating materials are fixed between the lifting assembly and the upper mold assembly and between the lower fixing plate and the lower mold assembly;

[0008] A side guard plate is fixed on the inner side wall of the side enclosure body; and a plurality of pads are evenly distributed between the side guard plate and the inner side wall of the side enclosure body.

[0009] Furthermore, each side surface of the upper mold assembly and each side surface of the lower mold assembly are fixed with a mold insulation plate; the mold insulation plate is arranged on the inner side of the side guard plate; there is a gap between the mold insulation plate and the side guard plate; the mold insulation plate connected to the upper mold assembly is the upper mold insulation plate; the mold insulation plate connected to the lower mold assembly is the lower mold insulation plate; the lower mold insulation plate is arranged on the inner side of the upper mold insulation plate.

[0010] Furthermore, an extension plate bent inwardly is provided at the top end of the lower mold heat insulation plate.

[0011] Furthermore, a feed port is provided on the front surface of the furnace cavity body; and an observation window is provided on the side surface of the furnace cavity body.

[0012] After adopting the above structure, the beneficial effects of the utility model are as follows: the heat insulation structure of the furnace chamber of a single-station molding machine described in the utility model, when using the utility model, the water circuit of the furnace chamber body is connected to a circulation system with a cooling device; the circulating water system provides cooling water for the water circuits of the side enclosures, fixed plates and lower fixed plates. The pads and support pads are made of insulating materials to prevent the heat on the mold from being directly transferred from the pads and support pads to the side enclosures, further reducing the heat loss of the mold; the side guard plates are made of stainless steel. The side guard plates are separated from the inner side walls of the side enclosures by pads, so that an air gap is formed between the side guard plates and the side enclosures; it can insulate the space inside the side guard plates, reduce the transfer of mold heat to each side enclosure, and thus ensure the speed of mold heating, improve the molding efficiency, reduce the heat loss of the mold, and reduce the loss of the molding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is a structural diagram of the utility model after the mold heat insulation board, side guard plate and part of the side wall are removed;

[0015] Figure 3 This is a structural diagram of the utility model after removing part of the mold heat insulation board and part of the side wall;

[0016] Figure 4 It is the front view of the side guard plate;

[0017] Figure 5 It is a top view of the side guard plate;

[0018] Figure 6 It is a structural diagram of the connection between the upper mold assembly and the mold heat insulation plate;

[0019] Description of reference numerals:

[0020] 1. Lifting assembly; 2. Upper fixing plate; 3. Side wall; 301. Feeding port; 302. Observation window;

[0021] 4. Lower fixed plate; 5. Lower die assembly; 6. Upper die assembly; 601. Support pad;

[0022] 7. Mold insulation board; 701. Extension board; 8. Side guard plate; 9. Pad block. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 6 As shown, the utility model describes a furnace chamber thermal insulation structure of a single-station molding machine, which includes a furnace chamber body, a lower mold assembly 5 fixed to the inner bottom wall of the furnace chamber body and a lifting assembly 1 fixed at one end to the top of the furnace chamber body; an upper mold assembly 6 is arranged inside the furnace chamber body; the other end of the lifting assembly 1 is fixed on the upper mold assembly 6; the upper mold assembly 6 and the lower mold assembly 5 are essentially the same as those in the prior art, so they are not described in detail. The lifting assembly 1 is an oil cylinder, and a lifting guide structure is arranged between the upper mold assembly 6 and the furnace chamber body; the lifting assembly 1 is used to drive the upper mold assembly 6 to perform lifting movements, and the upper mold assembly 6 and the lower mold assembly 5 are both provided with heating rods for heating the mold, and the material in the lower mold assembly 5 is molded by the downward movement of the upper mold assembly 6.

[0025] The furnace chamber body is composed of an upper fixed plate 2, a lower fixed plate 4 and four side walls 3 fixed between the upper fixed plate 2 and the lower fixed plate 4; water channels are arranged inside the four side walls 3 between the upper fixed plate 2 and the lower fixed plate 4; support blocks 601 made of heat insulating materials are fixed between the lifting assembly 1 and the upper mold assembly 6 and between the lower fixed plate 4 and the lower mold assembly 5; the shape of the support block 601 is set according to the shape of the position to which it is connected.

[0026] A side guard plate 8 is fixed on the inner side wall of the side enclosure body 3; a plurality of pads 9 are evenly arranged between the side guard plate 8 and the inner side wall of the side enclosure body 3;

[0027] The water circuit of the furnace cavity body is connected to a circulation system with a cooling device; the circulating water circuit system provides cooling water for the water circuits of the side wall 3, the fixed plate 2 and the lower fixed plate 4.

[0028] The pad 9 and the supporting pad 601 are both made of heat-insulating materials to prevent the heat on the mold from being directly transferred from the pad 9 and the supporting pad 601 to the side wall 3, further reducing the heat loss of the mold; the side guard plate 8 is made of stainless steel.

[0029] The side guard plate 8 is separated from the inner wall of the side enclosure 3 by a pad 9, so that an air gap is formed between the side guard plate 8 and the side enclosure 3; it can insulate the space inside the side guard plate 8, reduce the transfer of mold heat to each side enclosure 3, and thus ensure the speed of mold heating, improve the molding efficiency, reduce the heat loss of the mold, and reduce the loss of the molding machine.

[0030] As a preferred embodiment of the present invention, each side surface of the upper mold assembly 6 and each side surface of the lower mold assembly 5 are fixed with a mold heat insulation board 7; the mold heat insulation board 7 is arranged on the inner side of the side guard plate 8; there is a gap between the mold heat insulation board 7 and the side guard plate 8; the mold heat insulation board 7 connected to the upper mold assembly 6 is the upper mold heat insulation board; the mold heat insulation board 7 connected to the lower mold assembly 5 is the lower mold heat insulation board; the lower mold heat insulation board is arranged on the inner side of the upper mold heat insulation board;

[0031] The lower mold insulation plate is arranged on the inner side of the upper mold insulation plate to form an offset between the upper mold insulation plate and the lower mold insulation plate. In addition to preventing interference between the upper mold assembly 6 and the lower mold assembly 5 when the mold is closed, it can also form an additional air gap between the upper mold insulation plate and the lower mold insulation plate after the upper mold assembly 6 and the lower mold assembly 5 are closed, thereby reducing the heat transfer of the mold to the outside.

[0032] Another air gap is formed between the mold heat insulation plate 7 and the side guard plate 8, which can further reduce the heat transfer from the mold to the outside and play a role in heat preservation; the mold heat insulation plate 7 is made of stainless steel.

[0033] As a preferred embodiment of the utility model, an extension plate 701 bent inward is provided at the top of the lower mold insulation plate; the extension plate 701 is arranged at a position that will not hinder the lifting and lowering of the upper mold assembly 6; the extension plate 701 can block part of the heat from rising and reduce the cooling rate of the lower mold assembly 5.

[0034] As a preferred embodiment of the present invention, a feed port 301 is provided on the front surface of the furnace cavity body; an observation window 302 is provided on the side surface of the furnace cavity body; the observation window 302 can observe the situation inside the furnace cavity body; the feed port 301 is used to put in materials and take out products.

[0035] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A furnace chamber heat insulation structure of a single-station molding machine, comprising a furnace chamber body, a lower mold assembly (5) fixed to the inner bottom wall of the furnace chamber body, and a lifting assembly (1) with one end fixed to the top of the furnace chamber body; an upper mold assembly (6) is arranged inside the furnace chamber body; the other end of the lifting assembly (1) is fixed to the upper mold assembly (6); Features: The furnace chamber body is composed of an upper fixing plate (2), a lower fixing plate (4), and four side walls (3) fixed between the upper fixing plate (2) and the lower fixing plate (4); water channels are provided inside the four side walls (3) between the upper fixing plate (2) and the lower fixing plate (4); support pads (601) made of heat insulating material are fixed between the lifting assembly (1) and the upper mold assembly (6) and between the lower fixing plate (4) and the lower mold assembly (5); A side guard plate (8) is fixed on the inner side wall of the side enclosure body (3); and a plurality of cushion blocks (9) are evenly distributed between the side guard plate (8) and the inner side wall of the side enclosure body (3).

2. The furnace chamber heat insulation structure of a single-station molding machine according to claim 1, characterized in that: Each side surface of the upper mold assembly (6) and each side surface of the lower mold assembly (5) are fixed with a mold heat insulation plate (7); the mold heat insulation plate (7) is arranged on the inner side of the side guard plate (8); there is a gap between the mold heat insulation plate (7) and the side guard plate (8); the mold heat insulation plate (7) connected to the upper mold assembly (6) is an upper mold heat insulation plate; the mold heat insulation plate (7) connected to the lower mold assembly (5) is a lower mold heat insulation plate; the lower mold heat insulation plate is arranged on the inner side of the upper mold heat insulation plate.

3. The furnace chamber heat insulation structure of a single-station molding machine according to claim 2, characterized in that: An extension plate (701) bent inward is provided at the top end of the lower mold heat insulation plate.

4. The furnace chamber heat preservation and insulation structure of a single-station molding machine according to claim 1, characterized in that: A material feed port (301) is provided on the front surface of the furnace cavity body; and an observation window (302) is provided on the side surface of the furnace cavity body.

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